Number of equity-based compensation plans.

No definition available.

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- Definition

Refers to the percentage of stock outstanding as of the immediately preceding December 31st used to determine the annual increase in the Plan limit for authorized shares that may be granted as qualified and nonqualified options.

+ References

No definition available.

+ Details

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- Definition

Refers to the number of equal monthly installments awarded options will vest.

+ References

No definition available.

+ Details

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- Definition

Term the Plan shall continue to remain effective, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Percentage of vesting of share-based compensation awards.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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Namespace Prefix:	us-gaap_
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Period Type:	duration

- Details

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Namespace Prefix:
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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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Stock Options, Equity Compensation Plans (Details)		3 Months Ended	12 Months Ended
Stock Options, Equity Compensation Plans (Details)	Mar. 01, 2017 shares	Mar. 31, 2017 Plan Installment shares	Dec. 31, 2014 shares	Jan. 02, 2017 shares	Dec. 31, 2016 shares	Jan. 02, 2016 shares	Dec. 31, 2012 shares	Dec. 31, 2010 shares
Stock Options [Abstract]
Number of equity compensation plans \| Plan		3
Stock Options [Member]
Stock Options [Abstract]
Options outstanding (in shares)		395,000
Nonqualified Options [Member] \| Senior Vice President, Regulatory Affairs [Member]
Stock Options [Abstract]
Vesting period		4 years
Options granted (in shares)	80,000
Nonqualified Options [Member] \| Senior Vice President, Regulatory Affairs [Member] \| Vesting on February 28, 2018 [Member]
Stock Options [Abstract]
Vesting percentage		25.00%
Nonqualified Options [Member] \| Senior Vice President, Regulatory Affairs [Member] \| Vesting in 36 Monthly Installments After February 28, 2018 [Member]
Stock Options [Abstract]
Vesting percentage		75.00%
Number of monthly installments for vesting \| Installment		36
The Plans [Member]
Stock Options [Abstract]
Term of plan		10 years
The Plans [Member] \| Stock Options [Member]
Stock Options [Abstract]
Options granted (in shares)		965,700
Options outstanding (in shares)		6,193,461			5,316,511
The Plans [Member] \| Incentive Stock Options [Member]
Stock Options [Abstract]
Term of option		10 years
Vesting period		4 years
The Plans [Member] \| Nonqualified Options [Member] \| Minimum [Member]
Stock Options [Abstract]
Vesting period		3 years
The Plans [Member] \| Nonqualified Options [Member] \| Maximum [Member]
Stock Options [Abstract]
Vesting period		4 years
2010 Equity Incentive Plan [Member]
Stock Options [Abstract]
Number of shares authorized for issuance (in shares)								1,350,412
2012 Equity Incentive Plan [Member]
Stock Options [Abstract]
Number of shares authorized for issuance (in shares)							1,096,411
2014 Equity Incentive Plan [Member]
Stock Options [Abstract]
Number of shares authorized for issuance (in shares)			1,827,351	4,204,063		3,047,323
Percentage of Common Stock outstanding used to determine annual increase in the plan limit			4.00%